Driving-clutch.



H. ELLIOTT.

DRIVING CLUTCH.

APPLICATION FILED JUNE 1. 1914.

Patented June 15, 1915.

3 SHEETS--SHEET l1 1; uvnms PETERS CO1, PHOTU-LITHQ. wASHlNGmN, By a H.ELLIOTT.

DRIVING CLUTCH.

APPLICATION FILED JUNE 1. I914.

3 SHEETS-SHEET 2- THE NORRIS PETERS CO., FHOTO-LITHO.. WASHINGION. D. C.

H. ELLIOTT.

DRlV-ING CLUTCH.

APPLICATION FILED JUNE 1. 1914.

Patented June 15, 1915.

3 SHEETS-SHEET 3.

HARVEY ELLIoTT, or DETROIT, MICHI AN, ASSIGNOR To ARTHUR M. PARKER, 0F

DETROIT, MICHIGAN.

DRIVING-CLUTCH.

Original application filed lliebruary 3, 1913, Serial No. 745,783.Divided Specification of Letters Patent.

Patented June 15, 1915.

and this application filed June 1,

1914. Serial No. 841,984.

To all whom it may concern Be it known that I, HARVEY ELLIOTT, a citizenof the United States, residing at Detroit, county of lVayne, State ofMichigan, have invented a certain new and useful Improvement inDrivingClutches, and declare the following to be a full, clear, andexact description of the same, such as will enable others skilled in theart to which it pertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

My invention relates to a driving clutch which may be used toadvantagein connection with motor boats, hoisting apparatus, or other likeinstallations, as shown in the accompanying drawings and moreparticularly set forth in the following specification and claims.

This application is a division of the application for patent filed by meFebruary 3, 1913, Serial No. 745,783. 7

The object of my invention is to produce an efficient and inexpensivedriving clutch,*dispensing entirely with the trains of gears usuallyemployed in devices of this character,-the construction being such thatthe driving shaft may be coupled with a propeller shaft of a boat (forexample) in line therewith.

Other advantages and improvements will be hereafter set forth and moreparticularly pointed out in the claims;

In the drawings accompanying this specification :Figure 1 is ahorizontal sectional view through the clutch mechanism-With parts inelevationtaken on the parting line of the inclosing case and showing themechanism coupled to provide for a forward movement of the propellerblades (not shown). Fig. 2 is a cross-sectional View on line 2-2 ofFig. 1. Fig. 3 is'a side elevation of a detail adjacent to the shiftingfork. Fig. 4: 'is a cross-sectional view on line H of Fig. 5. Fig. 5 isa horizontal sectional view of a detail with the several rolls of theclutch mechanism in rolling driving contact with the cone carried by thepropeller shaft as in reversing the propeller blades. Fig. 6 is acrosssectional view on line 6-6 of Fig. 5. Fig. 7 is a cross-sectionalview on line 7 7 of Fig. 1. F ig. 8 is a cross-sectional view of adetail on line 88 of Fig. 1, withparts broken away. Fig. 9 is an endelevation of the device; and Fig. 10 a side elevation of the same.

Referring now to the letters of reference placed upon the drawings :Aindicates a driving shaft journaled at its forward end in a suitablebearing in the inclosing case B which is divided into two partslongitudinally, and bolted together in line with the driving shaft, Therear' end of the shaft is preferably reduced in diameter and housed in abushingc inserted in the propeller shaft C, as indicated in Fig. l ofthe drawings.

C denotes a collar keyed to the propeller shaft in turn bolted to asimilar collar carried by the shaft of the propeller blades (not shown).

C is a disk propeller shaft lar cone C v c is a thrust bearing betweenthe shoulder a of the driving shaft and the disk C and 0 is a similarthrust bearing between the collar C and the projecting hub b of thebearing formed in the inclosing case B to receive the propeller shaft C.

D indicates an annular shaft sleeved on the shaft A provided with a slotat a? for the passage of a key A carried by the shaft A, the slot beingof sufiicient length to admit of a longitudinal movement of the annularshaft along the shaft A, with which it is caused to rotate by the key A.

E denotes a cone-shaped ring housed within the cone C and keyed asindicated at e to the annular shaft 1).

E is a movable key supported in the wall of the ring E adapted to bethrust outward into a key-way 6, provided in the cone C through theaction of the spring E F is" a cone, of relatively different taper tothe annular cone C sleeved on the annular shaft D, and provided withakeyway f to receive the projecting key A carried by thedriving shaft,whereby the cone F is caused to rotate therewith while being adapted forlongitudinal movement with respect to the shaft.

F is a projecting sleeve preferably integral with the cone F, formedwith a flange F channeled to receive the friction rolls G carried by theshifting fork G. At F the end of the sleeve F is given a substantiallypreferably integral with the to which is bolted an annucone-shapedformation with an annular recess 7 adapted to receive the fingers h ofthe dogs H.- The dogs H are pivoted to the collar I which in turn iscarried by the annular shaft D.

f is a port in the cone F through which oil may be delivered to theperiphery of the annular shaft D upon which the cone F is designed toslide.

G indicates a transverse shaft journaled in the frame A to which theshifting fork is keyed. g

G is a lever keyed to the shaft G for manually operating it.

J denotes a collar pinned to the driving shaft A, provided with aninclined flange against which the fingers h of the dog H bear.

K is a helical spring sleeved on the driving shaft A, one end of whichbears against the collar J, and the other against the end of the annularshaft D.

L indicates a supporting ring provided with ears Z pierced for thepassage of bolts Z by which the ring is secured to the projecting lugsI) of the inclosing case B.

M denotes an adjustable annular frame or cage sleeved over the cone Fand pro vided with a projecting hub M extending into the ring L.

L is a set-screw carried by the ring L to secure the, hub to the ring,upon releasing which the frame may be adjusted to take up 7 wear. 1

N denotes a plurality of rolls mounted on the shafts N in turn keyed orpinned to the annular frame M,-the shafts being free to move along thepins to provide for a slight radial adjustment of the rolls whereby theymay be brought into rolling contact with the annular cone. The rolls Nare tapered slightly to provide a uniform contacting surface throughouttheir length with both the inner face of the cone C and the outer faceof the cone F, thereby insuring an equal or like speed transmissionbetween the gradually increasing diameter of the cone and the rollsthroughout their entire length.

n is a bushing on which the rolls rotate. O is a casting bolted to thecone F and 7 provided with an inclined slotted way 0 through whichprojects the spring E engaging the movable key E.

Having indicated the several parts by .reference letters, theconstruction and operation of my device will be readily under stood.

For purposes of description and to more clearly indicate the operationof the device,

7 it is assumed to be employed in connection with a motor boat (notshown), though it is equally well adapted for other installations.

When it is the desire of the operator to the periphery of thecone'shaped portion F of the projecting sleeve F, the fingers h bearingupon the inclined flange of the collar J, thereby securing the sleeveagainst accidental longitudinal movement with respect to the drivingshaft A. The movable key E carried by the cone-shaped ring E is forcedoutward and into locking relation with the annular cone C through theaction 7 of the spring E placed under increasing tension through therearward (or right hand) movement of the casting O bolted to the cone Fwhenthe lever G is moved to the position indicated :-it being obviousthat the tension of the spring is increased due to its sliding up theinclined way formed in the casting. The cone-shaped ring E when broughtinto impinging relation with the inner face of the annular cone O uponthe lever A being shifted and through the combined action of theconeshaped end F of the sleeve F and the tilting dogs H, carried by theannular shaft D, will rotate the latter, causing the propeller blades tomove with the drive shaft or in a forward direction. Should the load,however, be sufficient to cause slipping between the ring E and theinner face of the cone C the movable key E will lock the cone ring E ina positive driving rela-, tion with the annular cone G immediately uponthe key E registering with the keyway 6 in the cone,the spring E forcingthe key to its seat. 1

It will now be assumed that it is the desire of the operator to throwthe device into a neutral position; i. 6., the engine being permitted torun without operating the propeller blades. To accomplish this result,the operating lever G is given a slight movement to the left whichserves to unseat the fingers 71, of the dogs H from the depression 7" inthe cone-shaped portion F which action permits the spring K to force thesleeve to the right. along the driving shaft A, carrying with it thecone shaped ringE and atthe sametime automatically releasing the movablekey E, from engagement with the annular cone C ,it being obvious thatthe spring E engaging the movable key, being acted upon by the inclinedway in the casting 0, will serve to withdraw the movable key from itslocking engagement with the annular cone when the sleeve F is forced tothe left due' to the-manual operation of the lever G It will now beassumed that it is desired to reverse the direction previously taken bythe propeller blades. This result is accornplished by a still furthermovement of the operating lever G to the left. This action causes thecone F to move to the left sufiiciently to force outward the rolls Ninto impinging contact with the inner face of the annular cone C Therolls contacting as they do throughout their length with the cone F, arerotated thereby in an opposite direction to that taken by the cone F,and the driving shaft A,at the same time driving the annular cone C by arolling contact with its inner face-in the same direction as that takenby the rolls and in an opposite direction to that taken by the drivingshaft, thus reversing the movement of the propeller shaft C. It willtherefore be obvious that while the driving shaft operates in onedirection only, the propeller shaft may be actuated in either directionor remain at rest, as governed by the adjustment of the manuallyoperated leverG Attention is directed to the fact that when the lever G3is again moved to the right,to the position occupied when driving theboat forward,the cone-shaped portion F of the sleeve F will cause thedogs H totilt due to the action of the fingers it bearing thereon whilethe fingers h, bearing upon the inclined face of the collar J will causethe annular shaft D to move slightly to the left and against the actionof the spring K, thereby bringing the cone-shaped ring E,

7 carried by the annular shaft, into impinging relation with the annularV shifting the lever G to the left to either a neutral or reverseposition, the spring K will again become active forcing the annularshaft D to the right, thereby assisting in releasing the cone-shapedring E, from engagement with the annular cone C cone C Upon aving thusdescribed my invention,

what I claim is 1. In a device of the character described, a supportingframe, a driving shaft journaled therein, a driven shaft, an annularcone carried by the driven shaft having a.

slot adapted to receive a movable key, an annular shaft sleeved on thedriving shaft keyed to rotate therewith and free to slide thereon, acone wheel carried by the annular shaft adapted to engage the annularcone whereby the latter may be rotated in the same direction as thedriving shaft, a movable key carried by said cone wheel, and means forforcing said key into the slot formed in the annular cone to secure alooking driving engagement between the cone Wheel and the annular cone;

2. In a device of the character described, a supporting frame, a drivingshaft journaled therein, a driven shaft, an annular cone carried by thedriven shaft having a slot adapted to receive a movable key, an

nular cone annular shaft sleeved on the driving shaft keyed to rotatetherewith and free to slide thereon, means for longitudinally shiftingsaid annular shaft, a cone wheel carried by the annular shaft adapted toengage the annular cone whereby the latter may be rotated in the samedirection as the driving shaft, a movable key carried by said conewheel, a spring for forcing said key into the slot formed in the annularcone to secure a locking driving engagement between the cone wheel andthe annular cone, and means for shifting said annular shaft.

3. In a device of the character described, a supporting frame, a drivingshaft journaled therein, a driven shaft, an annular cone carried by thedriven shaft having a slot adapted to receive a movable key, an annularshaft sleeved on the driving shaft keyed to rotate therewith and free toslide thereon, means for longitudinally shifting said annular shaft, acone wheel carried by the annular shaft adapted to engage the annularcone whereby the latter may be rotated in the same direction as thedriving shaft, a movable key carried by said cone wheel, alongitudinally slidable element sleeved upon the annular shaft, meansfor manually actuating the slidable element, and means carried by theslidable element adapted to force the key into the slot in the annularcone and to withdraw it therefrom.

4. In a device of the character described, a supporting frame, a drivingshaft journaled therein, a driven shaft, an annular cone carried by thedriven shaft having a slot adapted to receive a movable key, an annularshaft sleeved on the driving shaft keyed to rotate therewith and free toslide thereon, means for longitudinally shifting said annular shaft, acone wheel carried by the annular shaft adapted to engage the anwherebythe latter may be rotated in the same direction as the driving shaft, amovable key carried by said cone wheel, a longitudinally slidableelement sleeved upon the annular shaft, means for manually actuating theslidable element, an

' inclined slotted element carried by the slidable element, and a springconnected with the key for actuating the latter and also engaged by saidslotted element, whereby its tension may be regulated and the key forcedinto the slot in the annular cone or withdrawn therefrom upon actuatingsaid slid- Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, I). 0."

